Harley Evo Exhaust Flange Set fits Big Twin & Sportster by TC Bros Battery Boxes Since the stock rubber intakes

Since the stock rubber intakes are not designed to support the weight of the carbs without your stock airboxes installed

Really hole-y for light weight (and it looks cool)

then the bolts pass through the tophats and thread into the mounting bungs located on the bottom of your fuel tank (not included)

To install

A stock Harley-Davidson air cleaner assembly with a hi-po filter within is the best combination of increased performance and all-weather functionality

Harley Evo Exhaust Flange Set fits Big Twin & Sportster by TC Bros Battery Boxes Since the stock rubber intakesHarley Evo Exhaust Flange Set fits Big Twin & Sportster by TC Bros TC Bros. do it yourself builders exhaust flange kit. This DIY flange set is perfect for the exhaust pipe builder who has access to a tubing bender. Tubing is 1. 75" OD x 16ga Wall (. 065" Thick) American Made mild steel for superior weldability. These heavy duty flanges are designed to provide a leak free seal and are made in the USA.